Submission #560520

#	Time	Username	Problem	Language	Result	Execution time	Memory
560520		AlperenT	Packing Biscuits (IOI20_biscuits)	C++17	42 / 100	1089 ms	8856 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>

using namespace std;

long long count_tastiness(long long x, vector<long long> arr){
	vector<pair<long long, long long>> prv, cur;

	while(!arr.empty() && arr.back() == 0) arr.pop_back();

	cur.push_back({0, 1});

	int k = 0;

	while(true){
		bool flag = false;
		long long cnt = k < arr.size() ? arr[k] : 0;

		for(auto i : cur) if(i.first / 2 + cnt - x >= 0) flag = true;

		if(flag || k < arr.size()){
			prv.clear();

			sort(cur.begin(), cur.end());

			for(auto p : cur){
				if(prv.empty() || (prv.back().first != p.first / 2)) prv.push_back({p.first / 2, p.second});
				else prv.back().second += p.second;
			}

			cur.clear();

			for(auto i : prv){
				cur.push_back({i.first + cnt, i.second});
				if(i.first + cnt - x >= 0) cur.push_back({i.first + cnt - x, i.second});
			}
		}
		else break;

		k++;
	}

	long long ans = 0;

	for(auto p : cur) ans += p.second;

	return ans;
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:17:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   long long cnt = k < arr.size() ? arr[k] : 0;
      |                   ~~^~~~~~~~~~~~
biscuits.cpp:21:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |   if(flag || k < arr.size()){
      |              ~~^~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 21 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23